Tenn. Code Ann. § 68-102-512: Enactment and enforcement of local law or regulations — Conflicts of law.

Notwithstanding any other law, the local governmental units of this state may neither enact nor enforce any ordinance or other local law or regulation conflicting with, or preempted by, any provision or with any policy of this state expressed by this part, whether that policy is expressed by inclusion of a provision in this part or by exclusion of that subject from this part.